ICD-10 Code K08.402 – Partial loss of teeth, unspecified cause, class II (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K08.402 – Partial loss of teeth, unspecified cause, class II
What it is
This code identifies partial loss of teeth when the cause is not specified and the condition is classified as class II. Use it for documented tooth loss that is partial, not complete.
Clinical signs
Findings may include missing teeth, reduced chewing efficiency, or altered bite alignment. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record states partial loss of teeth, unspecified cause, and includes class II. It is appropriate when the provider documents tooth loss but does not identify trauma, caries, periodontal disease, or another cause. Check documentation if the class or cause is unclear.
Do not use for
Do not use it for complete loss of teeth or when a specific cause is documented and should be coded instead. Do not assume class II if the record does not support it.
Coding tip
Match the code to both the degree of tooth loss and the documented class, and query the provider if either detail is missing.